Seal-lock.



' E. TYDEN.

SEAL LOOK.

I APPLIOATION FILED MAR. 5, 1913. 1,080, 1 85.

fi i727 6/5565 r w n M 12. hi5; 25 W /bi COLUMBIA PLANOGRAPHC0,,WASHINOTON. D. c.

Patented Dec. 2, 1913.

purine sra'rns pnrnivr orrron EMIL TYDEN, OF HASTINGS, MICHIGAN.

SEAL-LOCK.

Specification of Letters Patent.

Patented Dec. 2, 1913.

Application filed March 5, 1913. Serial No. 752,094.

ed to be secured against tampering, by a seal which must be brokenbefore the unlocking can be efiected.

It consists in the elements and features of construction shown anddescribed as indicated in the claims.

In the drawings :Figure 1 isa vertical transverse section of a boxhaving its lid secured by a lock embodying this invention, the lockbeing shown in side elevation with the parts, including the seal, atlocked position but not sealed. Fig. 2 is a front elevation of a boxsecured by a hasp and staple, and having a lock embodying this inventionapplied for securing the hasp, the lock with its bolt and sealing devicebeing shown at locking position, but not sealed. Fig. 3 is*a section atthe line 38 on Fig. 2. Fig. 4 is a plan view of the combined bolt andseal.

The lock shown in the drawings comprises a bolt housing, 1, and a flatmetal bolt and seal, 2, operating in a slide-way or slide path, 3, inthe housing, and having one end adapted to serve as the locking boltwhen the said combined seal and bolt is thrust longitudinally in theslide-way to the locking position. In the form illustrated in Fig. 1,which shows the lock applied to a box, A, having a hinged lid, B,provided with a lip or flange, C, which shuts down outside of thevertical wall of the box, the bolt end of the combined bolt and seal isshown less than the, full width of said bolt and seal, which isimade ofcomparatively fiat metal plate or comparatively thick sheet, andpositioned so as to stand edgewise to the pull which might be exertedupon it in attempting to open the box while locked. In the form shown inFig. 2, in which the device is adapted to a hasp and stapleconstruction, the seal housing has the function of the staple, and theseal bolt protruding at both ends stops the hasp. The essential featurecharacterizing the device is the provision for scaling, in which theseal is made to serve also as the bolt, the lock being without any boltother than that furnished by the sealing member. The housing has anaperture, 4, which extends transversely of the slide path of the boltand seal, so that the latter is exposed through said aperture of thehousing I at locked position; and the said bolt and seal has anaperture, 5, which approximately registers with said aperture, 4, of thehousing at said locking position, and hasprojecting from one end of saidaperture, 5, a

tongue, 6, which at the locking position of the seal bolt stands exposedin said aperture,

4, of the housing and adjacent to the edge thereof, past which it isthrust in inserting, and may be engaged by the finger inserted ""in' thenotch, 4 at the lower edge ofsaid aperture, 4, to bend the tongue into aposition transverse to the plane of the seal bolt so that said tongueextends across said adjacent edge of the aperture, 4, and prevents thewithdrawal of the seal bolt. The side of the aperture adjacent to whoseedge the tongue is thus positioned for bending, and across which it isbent for securing, may be regarded as a guard without regard to the factthat it is a part of the continuous boundary of the aperture, 4.

The metal of which the seal-bolt is formed and the length of the lineacross the tongue at which the bend occurs when it is thus bent toscaling position, are such that if the tongue is bent back to thisoriginal position in the plane of the seal, it will break at this line.Whether the breaking occurs or not, the seal bolt can be withdrawn uponthe tongue being bent back to its normal position; but the provision forcausing the tongue to break off when thus restored to position isnecessary in order that any unauthorized tampering with the device forunlocking may be disclosed by the fact that the seal tongue will be thusbroken ofi. The aperture, 4, of the housing is of such dimensions thatthe tongue, 6, exposed therein may be large enough to bear an easilyrecognizable identifying mark, which serves as a protection against thesubstitution of an other seal bolt when the original seal bolt has beenremoved by an unauthorized person breaking the seal tongue.

I claim 1. A seal lock comprising a housing, and a flat metal seal boltmounted for sliding in the housing; the housing having a slide path forthe bolt and a guard past which the adapted to be bent out of the planeof sliding into a plane extending transversely of the slide pat-h andacross the edge of the guard, and to break at the line of bending uponbeing straightened back into its original position.

2. A seal lock comprising a housing and a flat metal seal bolt mountedfor sliding in the housing, adapted to protrude therefrom for lockingthe housing, having a slide path for said seal bolt and a guard pastwhich said slide path extends,the seal bolt having a tongue whichextends normally in the plane of sliding and which at locking positionof the seal bolt is exposed and accessible adjacent to the guard, andbeyond the same in the direction of insertion, said tongue being adaptedto be bent transversely to its normal plane so as to extend across theedge of the guard, and to break at the line of bending upon beingstraightened back into its normal plane.

3. A seal lock comprising a housing and a fiat metal seal bolt mountedfor sliding in the housing, and adapted to protrude therefrom forlocking the housing, having a slide path for the seal bolt and anaperture which penetrates that path, the seal bolt having a tongue Whichstands normally in the plane of sliding and Which at the lockingposition of the bolt is exposed and accessible at said aperture of thehousing and which is adapted to be bent in said housing aperture so asto extend transversely of its slide path and across the edge of theaperture, and to break at the line of bending upon being straightenedback into its original position.

In testimony whereof, I have hereunto set my hand at Chicago, Illinois,this 24th day of February, 1913.

EMIL TYDEN. Witnesses:

LUCY I. STONE, EDNA M. MAoIN'rosH.

copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents,

Washington, D. U.

